Last updated Aug 4, 2026
3M CO (MMM) is a publicly traded company. This page tracks every superinvestor 13F holding, congressional stock trade, and Form 4 insider transaction in MMM. Across our datasets, 5 superinvestors hold MMM and 12 members of Congress have traded it.
Notable holders include Mairs & Power, Ray Dalio, and Torray Funds. Active congressional traders include Ro Khanna, Julie Johnson, and Josh Gottheimer.
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